Steam-boiler



Patented Jan. 3, I899. B. T. STAUBEB. STEAM BOILER No. 6|7,26l.

(Application filed Dec. 20, 1897.)

No Model.)

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BENJAMIN T. STAUBER, OF JEVELL, KANSAS.

STEAM-BQILER.

SPECIFICATION forming part of Letters Patent N 0. 617,261, dated January 3, 1899.

Application filed December 20,1897- Serial No. 662,762. (No model.)

To aZZ whom it may concern:

Be it known that I, BENJAMIN T. STAUBER, a citizen of the United States, residing in Jewell, in the county of Jewell and State of Kansas, have invented new and useful Improvements in Steam-Boilers, of which the following is a description, reference being made to the annexed drawings, illustrating the invention.

My invention is in the nature of a steamboiler having both an inner and outer shell, the inner shell of which is entirely open at the bottom and designed to collect the steam, the space between the inner and outer shells being filled with water.

Figure 1 represents a vertical section of an upright steam-boiler. Fig. 2 represents a vertical longitudinal section of a horizontal boiler, and Fig. 3 represents a vertical crosssection of Fig. 2.

My invention, as shown in Fig. 1, consists of a double upright cylinder. A is an outer cylinder constructed simply like an ordinary cylindrical steam-boiler. B, the inside cylinder, is constructed without a bottom and in all other respects is similar to the outside cylinder, except that it is made of lighter material. d is a steam outlet to connect with the cylinder of the engine. 6 is a waterpipe connected with the water-supply tank. Through the pipe 6 water is fed to the boiler and fills the space 0 between the two shells A B and lies in a relatively thin layer on the bottom 0', the inner shell B acting somewhat like a bell-jar. When heat is applied to the outer cylinder A O, the inner shell Bis filled with steam, the air being exhausted and the space between the cylinders C O O 0 being filled with water. The whole outside surface of the boiler A is enveloped with flame or heat from the furnace F, and the steam generated within the cylinder B maintains by its pressure a thin layer of water on the bottom 0 of the boiler, from which the steam is rapidly generated. The thin layer of water is maintained at O by constantly producing as much steam as is being taken off. As a matter of course when the fire is diminished the steam decreases in B and it becomes partly filled with water. hen the fire is producing steam, the water is forced outside and around B. The steam as it is generated always fills B and maintains the thin layer of water at 0. As long as sufficient heat is applied B will not only remain full of steam, but will generate enough to run the engine without letting out a particle of water. Drier steam is thus produced than can be made by ordinary boilers. B is full of air when the water is first put into the boiler and remains so until sufficient steam-pressure is generated to run the engine. There is no necessity for knowing the height of the water in B. The amount of water in boiler outside of B is determined by a water-gage in the same manner as in ordinary boilers.

In Fig. 1, g g represent supports for the boiler, and f f are braces holding the boiler parts together.

In Figs. 2 and 3, H H represent fire-flues in the bottom of the longitudinal boiler.

The points of advantage of my boilers are, first, ability to raise steam rapidly; second, ability to make large and rapid increase and also large and rapid reductions of steam Without blowing off; third, safety, facility for examination, cleaning and repairs, and, fourth,

cheapness of construction and saving of weight.

It is obvious that alterations in the construction of the upright and horizontal boilers might be resorted to without departing from the spirit of my invention, and hence I would have it understood that I do not limit myself to the exact construction of parts shown and described, but consider myself at liberty to make such changes in the constructions of boilers as come Within the spirit and scope of my invention.-

What I claim as my invention, and desire to secure by Letters Patent, is-

1. A steam-boiler provided with an interior steam-receiver open at its bottom and arranged to maintain a thin layer of water between the bottom of the outside cylinder and the steam-cushion of the inside cylinder, substantially as shown and described.

2. A steam-boiler provided with a compartment for steam inside, closed at the top and side, and open at its bottom, and forming an interior steam-dome substantially as and for the purpose described.

BENJAMIN T. STAUBER.

Witnesses E. R. ZIMMERMAN, GRACE L. STAUBER. 

